What I meant with schema is the database schema you can normally set via the orm.xml.Thus I could hang the JBM stuff not into it's own database but could add it as an other db schema to an existing database.

Are we talking about the same thing?

I have no issues with importing the data.Slony just requires one complete replication system *per database*.So the less databases I have, the better. (I am down to just one + JBM atm)

I'm not sure I understand you completely. I don't know Slony. But as long as JBM is concerned, one DB instance is enough for each JBM server, or each JBM cluster (where all nodes in one cluster share one DB instance).

If your replication system have access to the same DB, make sure their table names don't clash with JBM's.